I'm
not sure I agree with some of your permision changes. In particular,
doesn't putting /etc/sudoers to 777 make it readable writable and executable by
everyone? Then, since sudoers controls who can do what with sudo, surely
anyone can gain root access just by modifying the file?

After the configuring Orca walk through I recorded a few days
ago, I've had a lot of questions regarding setting Orca up for administration
in Ubuntu 8.04. Thanks to Will's instructions on the Orca wikki, I've
written some detailed steps for new users to follow. These instructions
as well as answers to a few other common questions I recieve are on my website
at www.digitaldarragh.com

This process is not very difficult however
I've been as descriptive here as possible to allow users who have listened to
my configuring Orca in Ubuntu 8.04 walk through to access these commands in a
more friendly format.

Go into a terminal. Press alt + F2, type
gnome-terminal then press enter.at the command prompt: ($) use the su
command to change to the root user.Firstly, install an easy to use text
editor such as Nano / Pico.

apt-get install nano

If nano is not
found, replace this with pico. These are escentially the same editors just
different versions.Create a .orbitrc file in your /root directory by
typing the following:

nano /root/.orbitrcInsert the following two
lines into this file:

ORBIIOPIPv4=1ORBIIOPUNIX=0Save and exit
this file. First press the key stroke: Control + x. When asked for the file
name you want to save this as just press enter. Then press Control +
C.Change the permissions on this file so that only the root user can read
and write to this file and the root group and all other users and groups can
read it.

nano
/etc/sudoersArrow down to the line containing the words: "env_reset". Just
after this line, insert the text below:

Defaults
env_keep+="GTK_MODULES"Save and exit the file. Control + x, hit enter to
accept the name /etc/sudoers. Hit control plluss c to quit.type exit to
return to your own user account.Change to your home directory by
typing:

cdCreate another .orbitrc file:

nano
.orbitrcInsert the following two lines into this
file:

ORBIIOPIPv4=1ORBIIOPUNIX=0Save and exit this file. First
press the key stroke: Control + x. When asked for the file name you want to
save this as just press enter. Then press Control + C.Change the
permissions on this file so that only you can read and write to this file and
the users group and all other users and groups can read it.

chmod 644
.orbitrcExit the terminal window by typing the exit command.Log out of
your session. Press alt f1, Press the right arrow twice, press up to quit then
enter. Alt and l will activate the log out button or alternatively, tab over
to it and press enter.When you log in again, access an administration tool
such as software sources by doing the following:Press alt f2 and type
gnome-terminal then hit enter.Change to the root account by typing su then
hit enterRestart orca with root privlidges:

orca --no-setup
--disable main-windowOrca will start and welcome you however will not
speak yet. Press alt f1, left once, down twice, right once then up seven times
to software sources and press enter. (Confused? ) Don't be. it's something
you'll ge tuse to.You will be prompted for your password. Type the same
password as you used to log into the system.You should now recieve
feedback from orca.To start orca normally again, press Alt+F2 and tyetype
orca in the launch application dialogue
box.